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IZ Energy Services Ltd

MCS Certified BUS Registered
Unit 2 & 3, Muirhead Quay, Fresh Wharf Estate, Barking, London, City of London, IG11 7BG
Air Source specialistBUS grant eligible94 reviewsServes 1 regions

3.9

94 Google reviews

1–2 days

Typical install time

£7,500

BUS grant amount

About IZ Energy Services Ltd

IZ Energy Services Ltd is an MCS certified air source installer based in City of London. They are registered with the Boiler Upgrade Scheme, meaning they can help you claim up to £7,500 towards your installation.

System typesAir Source
BUS grant handledYes

Coverage area

Map coming soon

Based in City of London, IG11 7BG

Areas served:

London

Reviews

3.9

94 Google reviews

Based on verified Google reviews

L

Lorraine White

a month ago

Have had IZ Energy here for two days for remedial works.The work is terrible the front of my house is now two tone different texture and different shade of grey both were pointed out and told it will be fine when paint dry. Numerous other faults like lead sheet on leaking end of guttering.Would have given no stars if possible. Future governments need to makesure they never get a contract again

J

John Grimes

3 months ago

Disgusting Treatment of Installers – Avoid at All Costs I am an installer who carried out work for IZ Energy Services Ltd and I still have not been paid. This company has a clear pattern of not paying installers on time. When you ask for your money, they ignore your calls, stop replying to messages, and lie repeatedly about payment dates. They are highly unprofessional and expect people to work for free. Promises mean nothing to them, and they have no respect for tradesmen or contractors. Chasing payment from them is a complete waste of time. Third-class people running a third-class operation. I strongly warn any installer or contractor to stay well away from IZ Energy Services Ltd unless you want to be unpaid and messed around.

D

David Long

2 years ago

I simply cannot recommend this company enough. High quality workmanship, polite, tidy, nothing was ever a problem I could go on & on. Javed and his team were a pleasure to deal with throughout. Any small issues that cropped up during the works were swiftly dealt with. I am beyond delighted with the result. Thankyou all ⭐⭐⭐⭐⭐

I

Ian Clemit

2 years ago

The “Team” engaged with me, talking through any worries or concerns I had about the project. They showed a high degree of professionalism and competence. The work rate is phenomenal, the final finish is of a very high standard with the attention to detail amazing, thanks Guys for all you have done.

a

abdul hafeez

4 years ago

IZ Energy Ltd installed under floor and loft insulation in my home under government green home grant. IZ energy guided me to apply for the grant. There was delay from the Government side to approve the Grant. IZ Energy customer service team follow up with Green home grant scheme and kept me updated throughout.the process Once grant was approved, Irfan seamlessly arranged installation within a week of approval of grant. The workmanship of the the worker was exceptional. I had recently installed laminate flooring, they removed it carefully and after installation install it back perfectly. To be honest it look better than before. During the installation, IZ energy customer service manager inspected the quality of work. I would delightedly recommend IZ Energy

Showing 5 of 94 reviews. View all on Google

Frequently asked questions

How do I know you’re properly qualified and certified to install heat pumps?

We are MCS‑certified and registered with an approved consumer protection/competent person scheme, which is essential for quality assurance and to access grants like the Boiler Upgrade Scheme (BUS).

Can you tell me if a heat pump is actually suitable for my home?

We carry out a detailed home assessment, including property type, insulation levels, existing heating system and available outdoor space, to confirm whether a heat pump is a good fit.

What type and size of heat pump will you recommend for my property, and why?

We design the system using a heat‑loss calculation for your home, then match the correct kW size and model (for example, air‑source vs ground‑source) so it runs efficiently and reliably.

What will the full installation cost be, and what’s included in your quote?

Our fixed quote clearly lists the heat pump, cylinder, controls, labour, scaffolding (if needed), electrical work and any radiator or pipework upgrades, so you know exactly what you’re paying for.

Can you help me access government grants like the Boiler Upgrade Scheme?

Yes, as an MCS installer we can confirm your eligibility, apply for the BUS grant (worth up to £7,500) on your behalf and deduct it directly from your quote.

How much disruption should I expect during installation, and how long does it take?

A typical air‑source heat pump installation takes around 2–5 days, and we’ll agree locations for the indoor and outdoor units, manage any planning considerations and keep you informed each day.

Will I need to replace my radiators or upgrade anything else in my home?

After the heat‑loss survey, we’ll advise if any radiators, pipework, electrics or hot‑water cylinder need upgrading so the system can run efficiently at lower flow temperatures.

How noisy is the outdoor unit and where will it be installed?

Modern heat pumps are designed to be quiet and must meet UK noise regulations; we’ll position the unit to minimise any impact on you and your neighbours and comply with local planning rules.

What warranties, servicing and aftercare do you provide?

You’ll get manufacturer warranties on the heat pump plus our workmanship guarantee, and we offer ongoing servicing and support to keep your system performing at its best.

What running costs and savings can I realistically expect compared to my current boiler?

We’ll estimate your likely annual running costs and potential savings based on your current fuel type, insulation level and tariffs, using real‑world performance data rather than lab figures.

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Quick facts
Regions covered1 areas

Boiler Upgrade Scheme

Up to £7,500

off your heat pump installation

This installer handles the full BUS grant application — deducted directly from your quote. No upfront payment needed for the grant amount.

Scheme open until 2028 — limited funding available

Check your eligibility

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